12781588807 has 12 divisors (see below), whose sum is σ = 13969788120. Its totient is φ = 11688107808.

The previous prime is 12781588739. The next prime is 12781588817. The reversal of 12781588807 is 70888518721.

It is not a de Polignac number, because 12781588807 - 2⁷ = 12781588679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12781588817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335332 + ... + 371497.

It is an arithmetic number, because the mean of its divisors is an integer number (1164149010).

Almost surely, 2^12781588807 is an apocalyptic number.

12781588807 is a deficient number, since it is larger than the sum of its proper divisors (1188199313).

12781588807 is a wasteful number, since it uses less digits than its factorization.

12781588807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706962 (or 706949 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 55.

The spelling of 12781588807 in words is "twelve billion, seven hundred eighty-one million, five hundred eighty-eight thousand, eight hundred seven".